NUMBER IS IN NUMBER When students are able to decompose and recompose numbers with fluency they are able to make sense of the 'algorithms' adults seem to believe to be so important in school math. In my approach to teaching math, I put an immediate emphasis on seeing, circling and 'counting with' small units or groupings. This is applying the skill of subitizing. Seeing number as a quantity that can be divided into equal groups is similar to seeing blends and letter combinations in words,...

Jamie found these 10 by 10 laminated grids already in her Grade 1 classroom and asked what ideas I had for them. Across all grades,...

I have been studying magnitude and density: understanding the relationship between numbers. Magnitude refers to ideas like: ***1000 is...